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Gemstone Crystal System Density Hardness Refractive index Treatments
trigonal (uniaxial +)
2.8-3.0 5-51/2 1.598-1.602 none





Red-violet, pink, blue, yellow and a light brown.

Fair, more of a collectible curiosity than durable gemstone. The name eudialyte comes from the Greek for "readily decomposable," because i'ts easily soluable in acids. It actually gelatinizes with hydrochloric acid.

Mont Saint-Hilaire, Quebec, Canada; Kola Peninsula, Russia; Kangerdluarsuk and Julianehaab, Greenland; the Langesundfjord region of Norway; Madagascar and Magnet Cove, Arkansas, USA. .

The eudialyte pictured above was found at Khybyne on the Kola Peninsula in Russia. It is an amazing locality that has a strange assortment of igneous minerals and is referred to as an Agpaitic Pegmatite. It is the result of several unique igneous intrusions that occured from 3 billion years ago to 360 million years ago

The site is unusually rich in sodium as well as other alkali metals. In addition, the site contains elements that are often referred to as "difficult" elements. These include zirconium, beryllium, strontium, cerium, niobium, thorium, barium, yttrium and other rare earth elements, that are especially large or have unusual charges, making it difficult for them to "fit" into other mineral structures. They are excluded from earlier crystallized minerals and must wait for their opportunity to crystallize later.

Na4(Ca, Ce, Fe, Mn)2ZrSi6O17(OH, Cl)2

Sodium Calcium Cerium Iron Manganese Zirconium Silicate Hydroxide Chloride

Eudialyte was discovered in 1819 in the Julianehaab district of Greenland. It occurs in distinctive colors of a red-violet, pink, blue, yellow and an attractive brown. The intensely carmine color has been referred to as "Dragon's Blood", by some Russian dealers. Eudialyte is a rare and collectable cyclosilicate mineral, rarely forming good crystals and only occasionally forming any crystal faces at all. It is usually just a component of a host rock. Eudialyte is considered to be a potential source of zirconium in the future


Crystal mystics have attributed eudialyte with the ability to activate the first and fourth chakras, giving one increased vitality and an emotional eqiilibrium.. The black inclusions in eudialyte purify its energies and provide a measure of psychic protection to those who use it.